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WO2015089499A4 - Dripless liquid color feed throat adaptor and method for dripless liquid color delivery - Google Patents

Dripless liquid color feed throat adaptor and method for dripless liquid color delivery Download PDF

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Publication number
WO2015089499A4
WO2015089499A4 PCT/US2014/070284 US2014070284W WO2015089499A4 WO 2015089499 A4 WO2015089499 A4 WO 2015089499A4 US 2014070284 W US2014070284 W US 2014070284W WO 2015089499 A4 WO2015089499 A4 WO 2015089499A4
Authority
WO
WIPO (PCT)
Prior art keywords
color
delivery tube
conduit assembly
screw
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2014/070284
Other languages
French (fr)
Other versions
WO2015089499A1 (en
Inventor
Stephen B. Maguire
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP14870414.1A priority Critical patent/EP3083185A4/en
Priority to CA2932927A priority patent/CA2932927A1/en
Priority to MX2016007467A priority patent/MX2016007467A/en
Publication of WO2015089499A1 publication Critical patent/WO2015089499A1/en
Publication of WO2015089499A4 publication Critical patent/WO2015089499A4/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/29—Feeding the extrusion material to the extruder in liquid form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/88—Adding charges, i.e. additives
    • B29B7/94—Liquid charges
    • B29B7/945—Liquid charges involving coating particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
    • B29C45/1816—Feeding auxiliary material, e.g. colouring material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/255—Flow control means, e.g. valves
    • B29C48/2552—Flow control means, e.g. valves provided in the feeding, melting, plasticising or pumping zone, e.g. screw, barrel, gear-pump or ram
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/256—Exchangeable extruder parts
    • B29C48/2563—Mounting or handling of the hopper or feeder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/286—Raw material dosing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/501—Extruder feed section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/16—Auxiliary treatment of granules
    • B29B2009/163—Coating, i.e. applying a layer of liquid or solid material on the granule
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/16—Auxiliary treatment of granules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
    • B29K2105/0032—Pigments, colouring agents or opacifiyng agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/002—Coloured
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85978—With pump

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

Apparatus and methods for converting granular plastic resin into colored finished or semi-finished plastic parts include a process machine having a barrel with a vertically opening feed throat, a rotatable screw inside the barrel, and a color feed conduit assembly positioned at least partially within the process machine and extending into the barrel for passage of liquid color downwardly through the color feed conduit assembly into proximity with the screw.

Claims

AMENDED CLAIMS
received by the International Bureau on 12 June 2015 (12.06.2015).
I claim the following:
1. Apparatus for converting granular plastic resin into colored finished or semi-finished plastic parts, comprising:
a. a process machine comprising:
i. a barrel having a vertically opening feed throat;
ii. a rotatable screw located inside the barrel;
iii. a plate covering the feed throat, having an aperture therethrough and a slot formed therein extending from the aperture to an edge of the plate; b. a color teed conduit assembly positioned at least partially within the process machine and extending into the barrel for passage of liquid color downwardly through the color feed conduit assembly into proximity with the screw, comprising:
i. a relatively rigid aluminum outer color delivery tube; ii. a relatively flexible inner color delivery tube telescopically disposed within the outer color delivery tube;
the color feed conduit assembly being positioned at least partially in a slot in the plate extending from the aperture to an edge of the plate and passing downwardly through the aperture with an outlet of the color feed assembly being in proximity with the screw; c. a color conveying tube;
d. a self-sealing quick release fitting connecting the color conveying tube to the color feed conduit assembly; e. pump for pumping liquid color from a supply thereof remote from the process machine through color conveying tube and the color feed conduit assembly into proximity with the rotatable screw.
2. Apparatus of claim 1 wherein the inner color delivery tube is a fiuoropolymer and
extends beyond the outer color delivery tube and the outlet end of the color feed c onduit assembly.
3. Apparatus of claim 2 wherein the inner color delivery tube extends at least 1 inch beyond the outer color delivery tu be at the outlet end of the color feed condu it assembly .
4. Apparatus of claim 1 wherein the inner color delivery tube is one-quarter inch outer diameter.
5. Apparatus of claim 1 wherein the inner color delivery tube is nylon.
6. Apparatus of claim 1 wherein the inner color delivery tube contacts the screw.
7. A method for supplying liquid co lor into proximity with a rotating screw of a process machine for converting granular plastic resin into finished or semi- inished plastic parts by molding or extrusion, the rotatable screw being within a barrel, the barrel having a feed throat for passage of liquid color therethrough downwardly towards the screw, comprising:
a. covering the feed throat with a plate having an aperture therethrough and a slot therein connecting the aperture with a plate edge;
b. positioning a telescoping color feed conduit assembly comprising an inner color delivery tube slidably disposed within an outer color delivery tube for telescoping movement with respect thereto, in the slot and extending downwardly through the aperture with the assembly outlet in proximity with the screw; c. providing a pneumatically powered pump for pumping liquid color from a supply thereo f to the process machine for delivery to the screw through the color feed conduit assembly;
d. providing a color conveying conduit connecting an outlet of the pump to the color feed conduit assembly via at least one self-sealing quick release fitting; and e. actuating the pump by application of compressed air thereto.
8. The method of claim 7 wherein the inner color delivery tube extends beyond the outer color delivery tube and the outlet end of the color feed conduit assembly.
9. The method of claim 8 wherein the inner co lor delivery tube extends at least 1 inch
beyond the outer color delivery tube at the outlet end of the color feed conduit assembly.
10. The method of c laim 7 wherein the inner color delivery tube is one-quarter inch outer diameter.
11. The method of claim 7 wherein the inner co lor delivery tube is Teflon fluoropolymer.
12. The method of claim 7 wherein the inner color delivery tube is nylon.
13. The method of claim 7 wherein the inner color delivery tube contacts the screw.
14. The method of claim 7 wherein the inner color delivery tube has an inner diameter of about 3/1.6 of an inch.
15. Apparatus for feeding liquid color to a process machine for converting granular plastic resin into finished or semi- finished plastic parts by molding or extrusion, the process machine having a rotatable screw located inside a barrel, the barrel having a vertically opening feed throat with a plate covering the feed throat, the plate having an aperture therethrough with a feed tube positioned therein for passage of liquid color downwardly through the tube into proximity with the screw, comprising:
29 a. a color feed conduit assembly comprising:
i. a rigid aluminum outer color delivery tube;
ii. an inner flexible polymeric color delivery tube telescopically disposed within the outer color delivery tube;
iii, the color feed conduit assembly being positioned at least partially in a slot in the plate extending from the aperture to an edge of the plate and passing downwardly through the aperture, with an outlet of the co lor feed assembly being in proximity with the screw;
b. a color conveying tube;
c. a self-sealing quick release fitting connecting the color conveying rube to the color feed conduit assembly; and
d. a pneumatically powered pump for pumping liquid color from a supply thereof remote from the process machine through the color conveying tube and the color feed conduit assembly into proximity with the rotatable screw.
16. Apparatus of claim 15 wherein the inner color delivery tube extends beyond the outer color delivery tube and the outlet end of the color feed conduit assembly.
17. Apparatus of claim 16 wherein the inner color delivery tube extends at least 1 inch
beyond the outer color delivery tube at the outlet end of the color feed conduit assembly.
18. Apparatus of claim 1 wherein the inner color delivery tube is one-quarter inch outer diameter.
19. Apparatus of c laim 1 wherein the inner color delivery tube is Teflon fluoropolymer.
20. Apparatus of claim 15 wherein the inner color delivery tube is nylon.
21. Apparatus of claim 15 wherein the inner color delivery tube contacts the screw.
30 Apparatus of claim 15 wherein the inner color delivery tube has an inner diameter of about 3/16 inch.
Apparatus of claim 1 further comprising a compression fitting securing the inner tube place relative to the outer tube.
Apparatus for converting granular plastic resin into colored finished or semi- finished plastic parts, comprising:
a. a process machine comprising:
i. a barrel having a vertically opening feed throat;
ii. a rotatable screw located inside the barrel.
b. a color feed conduit assembly positioned at least partially within the process machine and extending into the barrel for passage of liquid color downwardly through the color feed conduit assembly into proximity with the screw, comprising:
i. a relatively rigid metallic outer color delivery tube connected to the process machine;
ii. a relatively flexible polymeric inner color delivery tube telescopically disposed within the outer color delivery tube;
the color feed conduit assembly passing downwardly through the feed throat with an outlet of the color Iced assembly with an outlet at the outer periphery of the screw; c. a color conveying tube;
d. a self-sealing quick release fitting connecting the color conveying tube to the color feed conduit assembly,
31
25. Apparatus of claim 24 wherein the inner color delivery tube is a luoropolymer and extends beyond the outer color delivery tube and the outlet end of the color feed conduit assembly.
26. Apparatus of claim 25 wherein the inner color delivery tube extends at least 1 inch
beyond the outer color delivery tube at the outlet end of the color feed conduit assembly.
27. Apparatus of claim 24 wherein the inner color delivery tube is one-quarter inch outer diameter.
28. Apparatus of claim 24 wherein the inner color delivery t ube is nylon.
29. Apparatus of claim 24 wherein the inner color delivery tube contacts the screw.
30. Apparatus of claim 24 when inner diameter of the color delivery tube is about 3/16 inch.
31. A method for supplying liqu id color into proximity with a rotating screw of a process machine for converting granular plastic resin into finished or semi- finished plastic parts by molding or extrusion, the rotatable screw being within a barrel, the barrel having a feed throat for passage of liquid color therethrough downwardly towards the screw, comprising:
a. positioning a telescoping color feed conduit assembly comprising an inner color delivery tube slidably disposed within an outer color delivery tube for telescoping movement with respect thereto, in the feed throat with the assembly outlet at the outer periphery of the screw;
b. providing a color conveying conduit connecting an outle of the pump to the color feed conduit assembly via at least one self-sealing quick release fitting; and
32 c , pneumatically pumping liquid color from a supply thereof to the process machine for delivery to the screw through the color conveying conduit out the color feed conduit assembly.
32. The met hod of claim 31 wherein the inner color del ivery tube extends at least 1 inch beyond the outer color delivery tube at the outlet end of the color feed conduit assembly.
33. The method of claim 31 wherein the inner color delivery tube is one-quarter inch outer diameter.
34. The method of claim 31 wherein the inner color delivery tube is Teflon fluoropolymer.
35. The method of claim 31 wherein the inner color delivery tube contacts the screw.
36. The method of claim 31 wherein the inner color delivery tube has an inner diameter of about 3/16 of an inch.
37. Apparatus for feeding liquid color to a process machine for converting granular plastic resin into finished or semi- finished plastic parts by molding or extrusion, the process machine having a rotatable screw located inside a barrel, the barrel having a vertically opening feed throat with a plate covering the feed throat, the plate having an aperture therethrough with a feed tube positioned therein for passage of liquid color downwardly through the tube into proximity with the screw, comprising:
a. a color feed conduit assembly comprising:
i. a rigid aluminum outer color delivery tube;
ii. an inner flexible po lymeric color delivery tube teleseopieally disposed within the outer color delivery tube;
iii. the color feed conduit assembly being positioned at least partially in a slot in the plate extending from the aperture to an edge of the plate and passing
33 downwardly through the aperture, with an outlet of the color feed assembly being in proximity with the screw;
b. a color conveying tube;
c. a sell-sealing quick release fitting connecting the color conveying tube to the color feed conduit assembly; and
d. a pneumatically powered diaphragm pump for pumping liquid color from a
supply thereof remote from the process machine through the color conveying tube and the color feed conduit assembly into proximity with the rotatable screw. wherein the inner color delivery tube extends beyond the outer color delivery tube and the outlet end of the color feed conduit assembly;
the inner color delivery tube extends at least 1 inch beyond the outer color delivery tube at the outlet end of the color feed conduit assembly;
the inner color delivery tube is one-quarter inch outer diameter;
the inner color delivery tube is Teflon fluoropolymer;
the inner color delivery tube is nylon;
the inner color delivery tube contacts the screw;
the inner color delivery tube has an inner diameter of about 3/16 inch; and
further comprising a compression fitting securing the inner tube in place relative to the outer tube.
34
PCT/US2014/070284 2013-12-13 2014-12-15 Dripless liquid color feed throat adaptor and method for dripless liquid color delivery Ceased WO2015089499A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP14870414.1A EP3083185A4 (en) 2013-12-13 2014-12-15 Dripless liquid color feed throat adaptor and method for dripless liquid color delivery
CA2932927A CA2932927A1 (en) 2013-12-13 2014-12-15 Dripless liquid color feed throat adaptor and method for dripless liquid color delivery
MX2016007467A MX2016007467A (en) 2013-12-13 2014-12-15 Dripless liquid color feed throat adaptor and method for dripless liquid color delivery.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/105,958 US9796123B2 (en) 2013-12-13 2013-12-13 Dripless liquid color feed throat adaptor and method for dripless liquid color delivery
US14/105,958 2013-12-13

Publications (2)

Publication Number Publication Date
WO2015089499A1 WO2015089499A1 (en) 2015-06-18
WO2015089499A4 true WO2015089499A4 (en) 2015-07-16

Family

ID=53367321

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/070284 Ceased WO2015089499A1 (en) 2013-12-13 2014-12-15 Dripless liquid color feed throat adaptor and method for dripless liquid color delivery

Country Status (5)

Country Link
US (2) US9796123B2 (en)
EP (1) EP3083185A4 (en)
CA (1) CA2932927A1 (en)
MX (1) MX2016007467A (en)
WO (1) WO2015089499A1 (en)

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US9637283B2 (en) 2012-06-15 2017-05-02 Stephen B. Maguire Quarter turn adapter connective outlet fitting for liquid color dispensing
US9599265B2 (en) 2012-06-15 2017-03-21 Stephen B. Maguire Multiple plate quick disconnect sandwich fitting
US9188118B2 (en) 2012-06-15 2015-11-17 Stephen B. Maguire Injection molded diaphragm pump for liquid color with quick release
US11795297B2 (en) 2013-07-17 2023-10-24 Stephen B. Maguire Plastics coloring using cottonseed oil-based liquid color compositions
US10597513B2 (en) 2013-07-17 2020-03-24 Stephen B. Maguire Cottonseed oil based additive compositions for plastics molding and extrusion
US9708462B2 (en) 2013-07-17 2017-07-18 Stephen B. Maguire Liquid color composition with cottonseed oil base
US9841010B2 (en) 2014-02-14 2017-12-12 Stephen B. Maguire Method and apparatus for closed loop automatic refill of liquid color
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US20150165662A1 (en) 2015-06-18
US20180001534A1 (en) 2018-01-04
US9796123B2 (en) 2017-10-24
EP3083185A4 (en) 2017-10-18
WO2015089499A1 (en) 2015-06-18

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